FAQ¶
EUROCONTROL BADA License¶
Q: Was Eurocontrol BADA model data used in developing (parts of) the JetFuelBurn Python package?
Note
Base of Aircraft Data (BADA) is an aircraft performance model (APM) developed and maintained by the European Organisation for the Safety of Air Navigation (Eurocontrol). The BADA model data is proprietary and requires a valid license for use. In addition, license terms restrict the use of BADA in various ways.
A: No, not directly.
The reduced order module of the JetFuelBurn package implements three regression models which were in part developed based on BADA data. However, no BADA model data was used in developing any part of the JetFuelBurn package itself.
Model Overview¶
| Model | Publication Year | Disclaimer/Limitations |
|---|---|---|
jetfuelburn.reducedorder.lee_etal |
2010 | None |
jetfuelburn.reducedorder.yanto_etal |
2017 | None |
jetfuelburn.reducedorder.seymour_etal |
2020 | Yes: The fuel burn models provided (...) shall not be used for comparing fuel efficiency and emission data between aircraft models and manufacturers. |
Seymour et al. Model Disclaimer¶
The jetfuelburn.reducedorder.seymour_etal model for fuel burn estimation of commercial aircraft is a reduced order model. This means that the model is based on statistical analysis (regression) of a more complex model. In this specific case, Seymour et al. used a combination of BADA and ICAO Engine Emissions Databank data to compute high-resolution fuel burn estimates.
Having computed many such high-resolution estimates for different routes, they then performed a regression analysis to derive a reduced order model that can be used to compute fuel burn estimates with much lower computational effort. Their regression is in the variable of range \(R\) only, since they assume an average payload per aircraft: $$ F=a_1 \cdot R^2 + a_2 \cdot R + c $$ While Seymour et al. in developing their reduced-order model therefore used proprietary BADA data under license, the resulting regression coefficients \(a_1\), \(a_2\), and \(c\) have been published in the appendix to their open-access peer-reviewed article.
Note, however that in the disclaimer section of their article, they mention that:
The fuel burn models provided in (...) [the supplementary information] shall not be used for comparing fuel efficiency and emission data between aircraft models and manufacturers. Recommended model applications are reported in Section 3.5.
This notice is included with the implementation of the Seymour et al. model in the JetFuelBurn package.